Info
Insider Ownership

Insider Trading & Ownership of John B. Chang

Location: Washington, DC
Summary: The estimated net worth of John B. Chang is at least $4,640,144 dollars as of 05 Jan 2026. John B. Chang is the VP & CHIEF LEGAL OFFICER of COGENT COMMUNICATIONS HOLDINGS, INC. and owns shares of COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) stock worth about $4.64M.
Signature: /s/ John Chang
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Ownership of John B. Chang

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	Vp & Chief Legal Officer	$4,640,144			31 Dec 2025

Insider Transactions Reported by John B. Chang:

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.